. "The period of life , time of life , life , age , into pueritia , from birth to the 15th year; adulescentia , from that time to the 30th; juventus , to the 45th; the age of the seniores , to the 60th; and, finally, senectus poet. ; and absol. : aetas, aevitas = senectus, old age : aetate ( through age ." . "The period of life , time of life , life , age , into pueritia , from birth to the 15th year; adulescentia , from that time to the 30th; juventus , to the 45th; the age of the seniores , to the 60th; and, finally, senectus poet. ; and absol. : aetas, aevitas = senectus, old age : aetate ( through age ." . .